Home / 57,101.76-78,802.20-31,951.80

Finding the Fourth Proportional to 57,101.76, 78,802.20 and 31,951.80

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Solution

The fourth proportional to 57,101.76, 78,802.20 and 31,951.80 is: 44,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,101.76 : 78,802.20 = 31,951.80 : x
  2. Step 2: Convert to fraction form
    57,101.76/78,802.20 = 31,951.80/x
  3. Step 3: Cross multiply
    57,101.76x = 78,802.20 × 31,951.80
  4. Step 4: Simplify right side
    57,101.76x = 2,517,872,133.96
  5. Step 5: Solve for x
    x = 2,517,872,133.96/57,101.76
  6. Step 6: Final answer
    x = 44,094.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.